Microlab TK-3100 series of 100W Cable Loads are extended bandwidth design for CBRS and Band43 appli-cations, where extremely low Passive inter-modulation is required. A typical application is in terminating the un-used port of a Hybrid Coupler used to combine different wireless signals. This is also offered as a discrete product in the CT series of low PIM hybrid combiners.For IEC 60950 compliance (surface temperature no greater than 90°C) at full power at 55°C ambient, air flow over the fins is required.